The Mitsubishi CM300DY-28H is a dual-configuration IGBT module rated for 300A continuous collector current and a 1400V collector-emitter voltage (VCES). Built on Mitsubishi's proven high-speed IGBT chip technology, this module integrates anti-parallel freewheeling diodes in a 2-in-1 package, making it well-suited for high-power switching topologies where compact layout, thermal efficiency, and switching reliability are non-negotiable. Its robust baseplate construction supports direct heatsink mounting, enabling effective thermal management in continuous-duty industrial environments.

The CM300DY-28H is commonly deployed in medium-voltage AC motor drives, regenerative inverters, UPS systems, induction heating equipment, and industrial welding power supplies. Its high blocking voltage and current rating make it appropriate for three-phase inverter legs, DC choppers, and traction converter stages where component stress margins must be maintained under variable load cycles. OEMs and MRO teams sourcing for CNC machinery, crane drives, steel mill equipment, and large HVAC systems will recognize this module as a widely specified power switching element.

Quick Reference: CM300DY-28H

Key Features of the CM300DY-28H:

• 1400V VCES rating provides substantial voltage headroom for 600V and 690V bus systems with transient overvoltage margin
• 300A continuous collector current supports high-power inverter legs without parallel device configurations
• Dual (2-in-1) IGBT topology with integrated anti-parallel freewheeling diodes reduces external component count and simplifies PCB/busbar layout
• Low saturation voltage (VCE(sat)) minimizes conduction losses during high-duty-cycle operation, reducing thermal load on the heatsink assembly
• Optimized gate charge characteristics support reliable drive circuit design at standard 15V gate drive levels
• Isolated copper baseplate construction ensures electrical isolation between switching elements and heatsink, simplifying system grounding architecture

With a current factory lead time of 36 weeks for new production, procurement delays on the CM300DY-28H can halt production lines or extend unplanned downtime well beyond acceptable windows. This part is increasingly difficult to source through standard distribution channels, particularly for legacy equipment still in active service. ATI Accurate Technology maintains independent stock of hard-to-find, long-lead-time, and obsolete power semiconductor modules specifically to protect customers from these supply chain gaps — no waiting on factory allocations or broker uncertainty.

ATI Accurate Technology is located in Palmetto, Florida and ships same-day on orders placed before 5PM EST. Call 239-734-7566 or email sales@igbts.us to confirm availability, request a datasheet, or discuss volume pricing. Whether you need a single replacement unit or a standing blanket order, ATI works directly with maintenance engineers and procurement teams to keep critical equipment running.